I have one device configured to my Back Home Scene. This is what I believe Yeelight is calling Smart Scene. I need to remove the device because I think its causing issues. Unfortunately, when I uncheck the device in Edit Scene Management, the Save button disappears. Does anybody know of a fix?

You can capture a snapshot of the devices you want and save it to the cloud, so you don't need to adjust the device one by one if you have set up a scene, such as, "back home"/"Movie time", you can set up a scene by one command.

What's more, if you use Amazon Echo or IFTTT, you can find the scene name from them,which means you can take the scene as a device in some cases. If you have configured a scene named "Movie time", take Echo for example, you can discovery a device named "Movie time" from Alexa, then you control it by saying "turn on movie time".